Abiotic controls on warm-water carbonates through geological times
Description
Evaluation of global carbonate distribution and accumulation over the past 265 Myr accounting for changes in paleogeography, plate tectonics, and paleo-climatic conditions.
Methods
The approach relies on (1) paleo-environmental ocean variables from the HadCM3 (BRIDGE) coupled atmosphere-ocean-vegetation Hadley Centre climate models, (2) the observed modern photozoan-T factory defined after Michel et al., (3) the updated continental margins and paleocoastlines dataset available on Zenodo based on the paleogeography maps from the PALEOMAP project, and (4) sediment flux derived from global scale landscape evolution model for the Phanerozoic HydroShare. In addition, sensitivity tests are making use of the fossil records from the Paleo Reefs PARED database.
Table of contents
All provided data are available as geotiff files.
The dataset contains the environmental variables for each time slice (approximately every 5 Myr) and for 2 CO2 scenarios (Foster & Smooth curves - Foster_ensemble.zip and Smooth_ensemble.zip):
- currents
- ocean stream
- SSS max
- SSS min
- SST max
- SST min
- sediment influx
Then the results from the species distribution model (BIOMOD2) ensemble models are provided for each CO2 scenarios and contains four variables (FosterCO2.zip and Smooth_CO2.zip):
- median of probabilities (median),
- mean of probabilities (mean),
- weighted mean of probabilities according to single evaluation scores (wmean) and
- committee averaging score (ca):
Additional information are provided in the companion GitHub repository.